Discover China: Safe haven for rare dolphins in South China
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Another good news is that researchers can see new white dolphin cubs almost every year, a sign of population persistence.
Pan said the dolphins generally live in shallow waters less than 10 meters deep in the sea, and the Sanniang bay, which is home to a rich variety of plankton, fish and shrimps, has been a safe and suitable breeding ground for them.
"More importantly, human activities are less in this area, providing a sound and stable ecosystem to the rare species," Pan added.